what doe standing room only mean? will there just be an area that will be full of people standing and blocking people's views?

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Standing Room Only tickets allow the customer access to Nationals Park and the ability to watch the game without providing access to a specific seat. Fans can purchase up to two (2) tickets per transaction. We ask that fans in the lower bowl standing room areas stand one person deep to allow for easy mobility for other guests and guests in wheelchairs. Standing Room Only tickets are non-exchangeable and non-refundable.